Immersion heater on a plug?

That's reasonable enough, but would you say the same if the immersion was connected via, say, a DP switch - which, if the connections were loose enough, could get very hot very quickly? ... and what about cooking appliances?

I would be wary of any interconnections which became noticeably warm in service.
 
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I would be wary of any interconnections which became noticeably warm in service.
Sure - or, at least, 'fairly hot'. However, as I asked would you feel the need to "not leave such an arrangement unattended until it had proved itself. if the "arrangement" were the hard-wiring of an immersion, cooking appliance or whatever to a switch/'connection unit'/whatever?

How much time would you spend 'attending' an immersion connection in an airing cupboard before you deemed it to have ^proved itself"? :)

Kind Regards, John
 
How much time would you spend 'attending' an immersion connection in an airing cupboard before you deemed it to have ^proved itself"?

Something I had worked on, assuming the accessories were up to spec. I would have little to no concerns about.

Where the quality of the accessories, or the terminations were in any doubt -15 minutes would identify any immediate concerns.
 
Something I had worked on, assuming the accessories were up to spec. I would have little to no concerns about.
That presumably means that you would not have concerns about the connections/termination to plug and socket if you had 'worked on# them? However, what about the accessories - would you assume that they were not #up to spec' or what?

... but, of course, 'up to spec' begs the question I've been discussing with EFLI as to what that 'spec' actually is. Do you assume that a non-faulty 13A plug/socket can safely carry 13A for an indefinite period of time, provided that conductors are terminated in them satisfactorily?

Kind Regards, John
 
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... but, of course, 'up to spec' begs the question I've been discussing with EFLI as to what that 'spec' actually is. Do you assume that a non-faulty 13A plug/socket can safely carry 13A for an indefinite period of time, provided that conductors are terminated in them satisfactorily?

I have never trusted 13amp plugs and sockets to carry the full current indefinitely, I've seen far too many over heated ones to trust them. Ignoring poorly terminated ones- The fuse holders seem to be the root cause of many/most problems, including in FCU's
 
I have never trusted 13amp plugs and sockets to carry the full current indefinitely, I've seen far too many over heated ones to trust them. Ignoring poorly terminated ones- The fuse holders seem to be the root cause of many/most problems, including in FCU's
Yes, I'm inclined to agree - at least that there is 'uncertainty'. As I've said, I (and probably others) have seen BS1363 [plugs/sockets that have been supplying an immersion for a very long time, with no signs of any problems, but most of us have also seen plugs/sockets (which have been supplying lesser/less protracted loads that have suffered major thermal damage - so, yes, uncertainty.

As you say, poor termination and poor contact between fuse and fuse holder are the only two possible mechanisms for overheating that I can think of.

Kind Regards, John
 

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